<Canvas
    xmlns="http://schemas.microsoft.com/client/2007"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
  <Canvas.Triggers>
    <EventTrigger RoutedEvent="Canvas.Loaded">
      <EventTrigger.Actions>
        <BeginStoryboard>
          <Storyboard>
            <!--emphasize ColorAnimation-->
            <!--emphasize Storyboard.TargetName="e1_brush"-->
            <!--emphasize Storyboard.TargetProperty="Color"-->
            <ColorAnimation 
               Storyboard.TargetName="e1_brush"
               Storyboard.TargetProperty="Color"
               From="Red" To="Blue" Duration="0:0:5" />
            <!--emphasize ColorAnimation-->
            <!--emphasize Storyboard.TargetName="e2"-->
            <!--emphasize Storyboard.TargetProperty="(Fill).(Color)"-->
            <ColorAnimation 
               Storyboard.TargetName="e2"
               Storyboard.TargetProperty="(Fill).(Color)"
               From="Red" To="Blue" Duration="0:0:5" />
          </Storyboard>
        </BeginStoryboard>
      </EventTrigger.Actions>
    </EventTrigger>
  </Canvas.Triggers>
  
  <Ellipse Fill="Black"
      Height="100" Width="100" Canvas.Left="30" Canvas.Top="30">
    <!--begin emphasis-->
    <Ellipse.Fill>
      <SolidColorBrush x:Name="e1_brush" Color="black"/>
    </Ellipse.Fill>
    <!--end emphasis-->
  </Ellipse>
  
  <!--emphasize x:Name="e2"-->
  <Ellipse x:Name="e2" Fill="Black"
      Height="100" Width="100" Canvas.Left="30" Canvas.Top="130"/>
</Canvas>
